diff --git a/gcc13-fix.patch b/gcc13-fix.patch
deleted file mode 100644
index 9c4d540..0000000
--- a/gcc13-fix.patch
+++ /dev/null
@@ -1,272 +0,0 @@
-diff --git a/date.c b/date.c
-index 11c5e5f..97df6ab 100644
---- a/date.c
-+++ b/date.c
-@@ -42,7 +42,7 @@ static void		display(const char *, time_t);
- static void		dogmt(void);
- static void		errensure(void);
- static void		timeout(FILE *, const char *, const struct tm *);
--static ATTRIBUTE_NORETURN void usage(void);
-+ATTRIBUTE_NORETURN static void usage(void);
- 
- int
- main(const int argc, char *argv[])
-diff --git a/localtime.c b/localtime.c
-index 1d22d35..3bf1b91 100644
---- a/localtime.c
-+++ b/localtime.c
-@@ -838,7 +838,7 @@ is_digit(char c)
- ** Return a pointer to that character.
- */
- 
--static ATTRIBUTE_REPRODUCIBLE const char *
-+ATTRIBUTE_REPRODUCIBLE static const char *
- getzname(register const char *strp)
- {
- 	register char	c;
-@@ -859,7 +859,7 @@ getzname(register const char *strp)
- ** We don't do any checking here; checking is done later in common-case code.
- */
- 
--static ATTRIBUTE_REPRODUCIBLE const char *
-+ATTRIBUTE_REPRODUCIBLE static const char *
- getqzname(register const char *strp, const int delim)
- {
- 	register int	c;
-diff --git a/private.h b/private.h
-index 7a73eff..ae52298 100644
---- a/private.h
-+++ b/private.h
-@@ -628,7 +628,7 @@ char *asctime(struct tm const *);
- char *asctime_r(struct tm const *restrict, char *restrict);
- char *ctime(time_t const *);
- char *ctime_r(time_t const *, char *);
--double difftime(time_t, time_t) ATTRIBUTE_UNSEQUENCED;
-+ATTRIBUTE_UNSEQUENCED double difftime(time_t, time_t);
- size_t strftime(char *restrict, size_t, char const *restrict,
- 		struct tm const *restrict);
- # if HAVE_STRFTIME_L
-@@ -740,10 +740,10 @@ timezone_t tzalloc(char const *);
- void tzfree(timezone_t);
- # ifdef STD_INSPIRED
- #  if TZ_TIME_T || !defined posix2time_z
--time_t posix2time_z(timezone_t, time_t) ATTRIBUTE_REPRODUCIBLE;
-+ATTRIBUTE_REPRODUCIBLE time_t posix2time_z(timezone_t, time_t);
- #  endif
- #  if TZ_TIME_T || !defined time2posix_z
--time_t time2posix_z(timezone_t, time_t) ATTRIBUTE_REPRODUCIBLE;
-+ATTRIBUTE_REPRODUCIBLE time_t time2posix_z(timezone_t, time_t);
- #  endif
- # endif
- #endif
-diff --git a/zdump.c b/zdump.c
-index 7acb3e2..3e482ba 100644
---- a/zdump.c
-+++ b/zdump.c
-@@ -89,7 +89,7 @@ static bool	warned;
- static bool	errout;
- 
- static char const *abbr(struct tm const *);
--static intmax_t	delta(struct tm *, struct tm *) ATTRIBUTE_REPRODUCIBLE;
-+ATTRIBUTE_REPRODUCIBLE static intmax_t delta(struct tm *, struct tm *);
- static void dumptime(struct tm const *);
- static time_t hunt(timezone_t, time_t, time_t, bool);
- static void show(timezone_t, char *, time_t, bool);
-@@ -97,7 +97,7 @@ static void showextrema(timezone_t, char *, time_t, struct tm *, time_t);
- static void showtrans(char const *, struct tm const *, time_t, char const *,
- 		      char const *);
- static const char *tformat(void);
--static time_t yeartot(intmax_t) ATTRIBUTE_REPRODUCIBLE;
-+ATTRIBUTE_REPRODUCIBLE static time_t yeartot(intmax_t);
- 
- /* Is C an ASCII digit?  */
- static bool
-@@ -125,7 +125,7 @@ is_alpha(char a)
- 	}
- }
- 
--static ATTRIBUTE_NORETURN void
-+ATTRIBUTE_NORETURN static void
- size_overflow(void)
- {
-   fprintf(stderr, _("%s: size overflow\n"), progname);
-@@ -134,7 +134,7 @@ size_overflow(void)
- 
- /* Return A + B, exiting if the result would overflow either ptrdiff_t
-    or size_t.  */
--static ATTRIBUTE_REPRODUCIBLE ptrdiff_t
-+ATTRIBUTE_REPRODUCIBLE static ptrdiff_t
- sumsize(size_t a, size_t b)
- {
- #ifdef ckd_add
-@@ -151,7 +151,7 @@ sumsize(size_t a, size_t b)
- 
- /* Return a pointer to a newly allocated buffer of size SIZE, exiting
-    on failure.  SIZE should be nonzero.  */
--static void * ATTRIBUTE_MALLOC
-+ATTRIBUTE_MALLOC static void *
- xmalloc(size_t size)
- {
-   void *p = malloc(size);
-@@ -920,7 +920,7 @@ showextrema(timezone_t tz, char *zone, time_t lo, struct tm *lotmp, time_t hi)
- # include <stdarg.h>
- 
- /* A substitute for snprintf that is good enough for zdump.  */
--static int ATTRIBUTE_FORMAT((printf, 3, 4))
-+ATTRIBUTE_FORMAT((printf, 3, 4)) static int
- my_snprintf(char *s, size_t size, char const *format, ...)
- {
-   int n;
-diff --git a/zic.c b/zic.c
-index 892414a..f143fce 100644
---- a/zic.c
-+++ b/zic.c
-@@ -459,20 +459,20 @@ static char		roll[TZ_MAX_LEAPS];
- ** Memory allocation.
- */
- 
--static ATTRIBUTE_NORETURN void
-+ATTRIBUTE_NORETURN static void
- memory_exhausted(const char *msg)
- {
- 	fprintf(stderr, _("%s: Memory exhausted: %s\n"), progname, msg);
- 	exit(EXIT_FAILURE);
- }
- 
--static ATTRIBUTE_NORETURN void
-+ATTRIBUTE_NORETURN static void
- size_overflow(void)
- {
-   memory_exhausted(_("size overflow"));
- }
- 
--static ATTRIBUTE_REPRODUCIBLE ptrdiff_t
-+ATTRIBUTE_REPRODUCIBLE static ptrdiff_t
- size_sum(size_t a, size_t b)
- {
- #ifdef ckd_add
-@@ -487,7 +487,7 @@ size_sum(size_t a, size_t b)
-   size_overflow();
- }
- 
--static ATTRIBUTE_REPRODUCIBLE ptrdiff_t
-+ATTRIBUTE_REPRODUCIBLE static ptrdiff_t
- size_product(ptrdiff_t nitems, ptrdiff_t itemsize)
- {
- #ifdef ckd_mul
-@@ -502,7 +502,7 @@ size_product(ptrdiff_t nitems, ptrdiff_t itemsize)
-   size_overflow();
- }
- 
--static ATTRIBUTE_REPRODUCIBLE ptrdiff_t
-+ATTRIBUTE_REPRODUCIBLE static ptrdiff_t
- align_to(ptrdiff_t size, ptrdiff_t alignment)
- {
-   ptrdiff_t lo_bits = alignment - 1, sum = size_sum(size, lo_bits);
-@@ -526,7 +526,7 @@ memcheck(void *ptr)
- 	return ptr;
- }
- 
--static void * ATTRIBUTE_MALLOC
-+ATTRIBUTE_MALLOC static void *
- emalloc(size_t size)
- {
-   return memcheck(malloc(size));
-@@ -538,7 +538,7 @@ erealloc(void *ptr, size_t size)
-   return memcheck(realloc(ptr, size));
- }
- 
--static char * ATTRIBUTE_MALLOC
-+ATTRIBUTE_MALLOC static char *
- estrdup(char const *str)
- {
-   return memcheck(strdup(str));
-@@ -608,7 +608,7 @@ eat(int fnum, lineno num)
- 	eats(fnum, num, 0, -1);
- }
- 
--static void ATTRIBUTE_FORMAT((printf, 1, 0))
-+ATTRIBUTE_FORMAT((printf, 1, 0)) static void
- verror(const char *const string, va_list args)
- {
- 	/*
-@@ -626,7 +626,7 @@ verror(const char *const string, va_list args)
- 	fprintf(stderr, "\n");
- }
- 
--static void ATTRIBUTE_FORMAT((printf, 1, 2))
-+ATTRIBUTE_FORMAT((printf, 1, 2)) static void
- error(const char *const string, ...)
- {
- 	va_list args;
-@@ -636,7 +636,7 @@ error(const char *const string, ...)
- 	errors = true;
- }
- 
--static void ATTRIBUTE_FORMAT((printf, 1, 2))
-+ATTRIBUTE_FORMAT((printf, 1, 2)) static void
- warning(const char *const string, ...)
- {
- 	va_list args;
-@@ -666,7 +666,7 @@ close_file(FILE *stream, char const *dir, char const *name,
-   }
- }
- 
--static ATTRIBUTE_NORETURN void
-+ATTRIBUTE_NORETURN static void
- usage(FILE *stream, int status)
- {
-   fprintf(stream,
-@@ -3597,7 +3597,7 @@ lowerit(char a)
- }
- 
- /* case-insensitive equality */
--static ATTRIBUTE_REPRODUCIBLE bool
-+ATTRIBUTE_REPRODUCIBLE static bool
- ciequal(register const char *ap, register const char *bp)
- {
- 	while (lowerit(*ap) == lowerit(*bp++))
-@@ -3606,7 +3606,7 @@ ciequal(register const char *ap, register const char *bp)
- 	return false;
- }
- 
--static ATTRIBUTE_REPRODUCIBLE bool
-+ATTRIBUTE_REPRODUCIBLE static bool
- itsabbr(register const char *abbr, register const char *word)
- {
- 	if (lowerit(*abbr) != lowerit(*word))
-@@ -3622,7 +3622,7 @@ itsabbr(register const char *abbr, register const char *word)
- 
- /* Return true if ABBR is an initial prefix of WORD, ignoring ASCII case.  */
- 
--static ATTRIBUTE_REPRODUCIBLE bool
-+ATTRIBUTE_REPRODUCIBLE static bool
- ciprefix(char const *abbr, char const *word)
- {
-   do
-@@ -3725,14 +3725,14 @@ getfields(char *cp, char **array, int arrayelts)
- 	return nsubs;
- }
- 
--static ATTRIBUTE_NORETURN void
-+ATTRIBUTE_NORETURN static void
- time_overflow(void)
- {
-   error(_("time overflow"));
-   exit(EXIT_FAILURE);
- }
- 
--static ATTRIBUTE_REPRODUCIBLE zic_t
-+ATTRIBUTE_REPRODUCIBLE static zic_t
- oadd(zic_t t1, zic_t t2)
- {
- #ifdef ckd_add
-@@ -3746,7 +3746,7 @@ oadd(zic_t t1, zic_t t2)
-   time_overflow();
- }
- 
--static ATTRIBUTE_REPRODUCIBLE zic_t
-+ATTRIBUTE_REPRODUCIBLE static zic_t
- tadd(zic_t t1, zic_t t2)
- {
- #ifdef ckd_add
diff --git a/timezone-java.changes b/timezone-java.changes
index 777a5dd..96925c8 100644
--- a/timezone-java.changes
+++ b/timezone-java.changes
@@ -1,3 +1,23 @@
+-------------------------------------------------------------------
+Fri Mar 24 07:23:40 UTC 2023 - Andreas Stieger <andreas.stieger@gmx.de>
+
+- timezone update 2023b:
+  * In 2032 Lebanon springs forward April 20/21 not March 25/26
+
+-------------------------------------------------------------------
+Thu Mar 23 10:28:18 UTC 2023 - Danilo Spinella <danilo.spinella@suse.com>
+
+- timezone update 2023a:
+  * Egypt now uses DST again, from April through October.
+  * This year Morocco springs forward April 23, not April 30.
+  * Palestine delays the start of DST this year.
+  * Much of Greenland still uses DST from 2024 on.
+  * America/Yellowknife now links to America/Edmonton.
+  * tzselect can now use current time to help infer timezone.
+  * The code now defaults to C99 or later.
+- Refresh tzdata-china.diff
+- Remove upstreamed patch gcc13-fix.patch
+
 -------------------------------------------------------------------
 Tue Mar  7 09:34:28 UTC 2023 - Martin Liška <mliska@suse.cz>
 
diff --git a/timezone-java.spec b/timezone-java.spec
index a2a1412..15b116c 100644
--- a/timezone-java.spec
+++ b/timezone-java.spec
@@ -25,7 +25,7 @@ License:        BSD-3-Clause AND SUSE-Public-Domain
 Group:          System/Base
 # COMMON-BEGIN
 # COMMON-BEGIN
-Version:        2022g
+Version:        2023b
 Release:        0
 Source:         https://www.iana.org/time-zones/repository/releases/tzdata%{version}.tar.gz
 Source1:        https://www.iana.org/time-zones/repository/releases/tzcode%{version}.tar.gz
@@ -37,7 +37,6 @@ Patch0:         tzdata-china.diff
 Patch3:         iso3166-uk.diff
 Patch4:         timezone-2018f-bsc1112310.patch
 Patch5:         fat.patch
-Patch6:         gcc13-fix.patch
 # COMMON-END
 # COMMON-END
 URL:            https://www.iana.org/time-zones
@@ -59,7 +58,6 @@ package is intended for Java Virtual Machine based on OpenJDK.
 %patch3 -p1
 %patch4 -p1
 %patch5 -p1
-%patch6 -p1
 sed -ri 's@/usr/local/etc/zoneinfo@%{_datadir}/zoneinfo@g' *.[1358]
 # COMMON-PREP-END
 # COMMON-PREP-END
diff --git a/timezone-java.spec.in b/timezone-java.spec.in
index 8370c2a..52516e1 100644
--- a/timezone-java.spec.in
+++ b/timezone-java.spec.in
@@ -1,7 +1,7 @@
 #
 # spec file for package timezone-java
 #
-# Copyright (c) 2022 SUSE LLC
+# Copyright (c) 2023 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
diff --git a/timezone.changes b/timezone.changes
index 777a5dd..96925c8 100644
--- a/timezone.changes
+++ b/timezone.changes
@@ -1,3 +1,23 @@
+-------------------------------------------------------------------
+Fri Mar 24 07:23:40 UTC 2023 - Andreas Stieger <andreas.stieger@gmx.de>
+
+- timezone update 2023b:
+  * In 2032 Lebanon springs forward April 20/21 not March 25/26
+
+-------------------------------------------------------------------
+Thu Mar 23 10:28:18 UTC 2023 - Danilo Spinella <danilo.spinella@suse.com>
+
+- timezone update 2023a:
+  * Egypt now uses DST again, from April through October.
+  * This year Morocco springs forward April 23, not April 30.
+  * Palestine delays the start of DST this year.
+  * Much of Greenland still uses DST from 2024 on.
+  * America/Yellowknife now links to America/Edmonton.
+  * tzselect can now use current time to help infer timezone.
+  * The code now defaults to C99 or later.
+- Refresh tzdata-china.diff
+- Remove upstreamed patch gcc13-fix.patch
+
 -------------------------------------------------------------------
 Tue Mar  7 09:34:28 UTC 2023 - Martin Liška <mliska@suse.cz>
 
diff --git a/timezone.spec b/timezone.spec
index c72588d..8e2ef84 100644
--- a/timezone.spec
+++ b/timezone.spec
@@ -22,7 +22,7 @@ License:        BSD-3-Clause AND SUSE-Public-Domain
 Group:          System/Base
 URL:            http://www.iana.org/time-zones
 # COMMON-BEGIN
-Version:        2022g
+Version:        2023b
 Release:        0
 Source:         https://www.iana.org/time-zones/repository/releases/tzdata%{version}.tar.gz
 Source1:        https://www.iana.org/time-zones/repository/releases/tzcode%{version}.tar.gz
@@ -34,7 +34,6 @@ Patch0:         tzdata-china.diff
 Patch3:         iso3166-uk.diff
 Patch4:         timezone-2018f-bsc1112310.patch
 Patch5:         fat.patch
-Patch6:         gcc13-fix.patch
 # COMMON-END
 BuildRoot:      %{_tmppath}/%{name}-%{version}-build
 
@@ -52,7 +51,6 @@ can select an appropriate time zone for your system with YaST.
 %patch3 -p1
 %patch4 -p1
 %patch5 -p1
-%patch6 -p1
 sed -ri 's@/usr/local/etc/zoneinfo@%{_datadir}/zoneinfo@g' *.[1358]
 # COMMON-PREP-END
 
diff --git a/tzcode2022g.tar.gz b/tzcode2022g.tar.gz
deleted file mode 100644
index 951103e..0000000
--- a/tzcode2022g.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:9610bb0b9656ff404c361a41f3286da53064b5469d84f00c9cb2314c8614da74
-size 287901
diff --git a/tzcode2022g.tar.gz.asc b/tzcode2022g.tar.gz.asc
deleted file mode 100644
index 62f808e..0000000
--- a/tzcode2022g.tar.gz.asc
+++ /dev/null
@@ -1,16 +0,0 @@
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-
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-=tSyt
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diff --git a/tzcode2023b.tar.gz b/tzcode2023b.tar.gz
new file mode 100644
index 0000000..c3c7fd6
--- /dev/null
+++ b/tzcode2023b.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:115482e3ba66dcb651c88f2cda79c571036acf9b63873178d6a0442cd3be13d2
+size 292492
diff --git a/tzcode2023b.tar.gz.asc b/tzcode2023b.tar.gz.asc
new file mode 100644
index 0000000..82136bb
--- /dev/null
+++ b/tzcode2023b.tar.gz.asc
@@ -0,0 +1,16 @@
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+oiCeRxxsLLoU4ZoJdrEh3Q4q4a3g/j5NGL3oi1ktlwHz1dnJFd2UQ+XlK2mv2/Lb
+o+cwaM0RV8SZojClxXF/ditXgsJ+EGbSX7WYKX7XfCxdWwFw+ZZPPcYvmXvenFCl
+wtJWjgo11a3V7OpKk4kfX/EuoNoHTF7uOIr943Id96JFM0z7LET1zaoKzObMs0+l
+Afyi1Rl0bxO6rlPH+HRJb41cac1YXMcoRkz0rzvaZalEA4FYFYIsA4nbuVB1DGIW
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+PSMozhoQ3moWHRBsW3PU7XBsxOf6kDMrqUxWTo1oKVv0Jy5xfO0=
+=UybO
+-----END PGP SIGNATURE-----
diff --git a/tzdata-china.diff b/tzdata-china.diff
index b33b510..447a399 100644
--- a/tzdata-china.diff
+++ b/tzdata-china.diff
@@ -1,7 +1,7 @@
-Index: timezone-2022f/asia
+Index: timezone-2023a/asia
 ===================================================================
---- timezone-2022f.orig/asia
-+++ timezone-2022f/asia
+--- timezone-2023a.orig/asia
++++ timezone-2023a/asia
 @@ -653,6 +653,8 @@ Rule	PRC	1987	1991	-	Apr	Sun>=11	 2:00	1
  Zone	Asia/Shanghai	8:05:43	-	LMT	1901
  			8:00	Shang	C%sT	1949 May 28
@@ -11,11 +11,11 @@ Index: timezone-2022f/asia
  # Xinjiang time, used by many in western China; represented by Ürümqi / Ürümchi
  # / Wulumuqi.  (Please use Asia/Shanghai if you prefer Beijing time.)
  # Vostok base in Antarctica matches this since 1970.
-Index: timezone-2022f/zone.tab
+Index: timezone-2023a/zone.tab
 ===================================================================
---- timezone-2022f.orig/zone.tab
-+++ timezone-2022f/zone.tab
-@@ -144,6 +144,7 @@ CL	-3327-07040	America/Santiago	Chile (m
+--- timezone-2023a.orig/zone.tab
++++ timezone-2023a/zone.tab
+@@ -142,6 +142,7 @@ CL	-3327-07040	America/Santiago	most of
  CL	-5309-07055	America/Punta_Arenas	Region of Magallanes
  CL	-2709-10926	Pacific/Easter	Easter Island
  CM	+0403+00942	Africa/Douala
@@ -23,12 +23,12 @@ Index: timezone-2022f/zone.tab
  CN	+3114+12128	Asia/Shanghai	Beijing Time
  CN	+4348+08735	Asia/Urumqi	Xinjiang Time
  CO	+0436-07405	America/Bogota
-Index: timezone-2022f/zone1970.tab
+Index: timezone-2023a/zone1970.tab
 ===================================================================
---- timezone-2022f.orig/zone1970.tab
-+++ timezone-2022f/zone1970.tab
-@@ -124,6 +124,7 @@ CK	-2114-15946	Pacific/Rarotonga
- CL	-3327-07040	America/Santiago	Chile (most areas)
+--- timezone-2023a.orig/zone1970.tab
++++ timezone-2023a/zone1970.tab
+@@ -125,6 +125,7 @@ CK	-2114-15946	Pacific/Rarotonga
+ CL	-3327-07040	America/Santiago	most of Chile
  CL	-5309-07055	America/Punta_Arenas	Region of Magallanes
  CL	-2709-10926	Pacific/Easter	Easter Island
 +CN	+3955+11626	Asia/Beijing	China Standard Time
diff --git a/tzdata2022g.tar.gz b/tzdata2022g.tar.gz
deleted file mode 100644
index a172830..0000000
--- a/tzdata2022g.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:4491db8281ae94a84d939e427bdd83dc389f26764d27d9a5c52d782c16764478
-size 439731
diff --git a/tzdata2022g.tar.gz.asc b/tzdata2022g.tar.gz.asc
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